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Finding the Fourth Proportional to 267,387.40, 368,856.66 and 181,317.28

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Solution

The fourth proportional to 267,387.40, 368,856.66 and 181,317.28 is: 250,124.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,387.40 : 368,856.66 = 181,317.28 : x
  2. Step 2: Convert to fraction form
    267,387.40/368,856.66 = 181,317.28/x
  3. Step 3: Cross multiply
    267,387.40x = 368,856.66 × 181,317.28
  4. Step 4: Simplify right side
    267,387.40x = 66,880,086,301.08
  5. Step 5: Solve for x
    x = 66,880,086,301.08/267,387.40
  6. Step 6: Final answer
    x = 250,124.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.